Answer:
[tex]A(1,1)\to A'(-1,1)[/tex]
Step-by-step explanation:
The rule for reflecting a given point (x,y) over the y-axis is [tex](x,y)\to(-x,y)[/tex].
That means we reflect a given point over the y-axis by negating the x-coordinate of the given point.
If one of the options is "negate the x-coordinate of the preimage", then this is the correct option.
If you have: [tex]A(1,1)\to A'(-1,1)[/tex] among the options, then it is the correct answer.